The acidity constant of an acid ha , [ ha ] in a solution of a weak acid hydromum ions , with higher concentration of original acid molecules ha smaller ka the acid does not dissociate well. The basicity constant for a base b . Log ka t f - log kb ) = - log kw log kw p kw p ka t p kb = Apply only to a conjugate acid - base pair. Ka as the acidity constant of the acid. The only acid species present in an aqueous solution of a strong acid is the hz ot ion what means by " leveled " One factor in determining acid strength is looking at how bonds can be broken and formed. Cg ) t e ( g) t acg , Ha cag ) t h2o l l ) hs ot cag , t a - The enthalpy change for the overall process ,